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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 5891359 B1

PDFFull Text
Date of Patent:
Apr. 06, 1999

Filed:

Jun. 16, 1992

Liquid crystal compound

Applicant:
Inventors:

Yoshihiko Aihara, Tokyo, JP;

Tadaaki Isozaki, Tokyo, JP;

Noriko Yamakawa, Tokyo, JP;

Ichiro Kawamura, Tokyo, JP;

Assignee:

Showa Shell Sekiyu Kabushiki Kaisha, Tokyo, JP;

Attorney:

Pillsbury Madison & Sutro LLP

Primary Examiner:

C H Kelly

Int. Cl.
CPC ...
C09K / ; C07C / ;
U.S. Cl.
CPC ...
25229962 ; 560100 ;
Abstract

The novel liquid crystal compounds of the present invention are represented by the following formulas �I!-�II! and have tristable molecular orientation states and can be used for display devices and electrooptical devices. ##STR1## wherein R.sub.1 represents an alkyl group of 5-18 carbon atoms; R.sub.2 represents an alkyl group of 6-16 carbon atoms; R.sub.3 represents an alkyl group of 8-18 carbon atoms; R.sub.4 represents an alkyl group of 6-14 carbon atoms; Y represents ##STR2## and * indicates an optically active center.

Find Patent Forward Citations

Aihara, Yoshihiko. (1999). Liquid crystal compound (U.S. Patent No. 5891359). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5891359

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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